505 research outputs found

    Non-volatile, high density, high speed, Micromagnet-Hall effect Random Access Memory (MHRAM)

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    The micromagnetic Hall effect random access memory (MHRAM) has the potential of replacing ROMs, EPROMs, EEPROMs, and SRAMs because of its ability to achieve non-volatility, radiation hardness, high density, and fast access times, simultaneously. Information is stored magnetically in small magnetic elements (micromagnets), allowing unlimited data retention time, unlimited numbers of rewrite cycles, and inherent radiation hardness and SEU immunity, making the MHRAM suitable for ground based as well as spaceflight applications. The MHRAM device design is not affected by areal property fluctuations in the micromagnet, so high operating margins and high yield can be achieved in large scale integrated circuit (IC) fabrication. The MHRAM has short access times (less than 100 nsec). Write access time is short because on-chip transistors are used to gate current quickly, and magnetization reversal in the micromagnet can occur in a matter of a few nanoseconds. Read access time is short because the high electron mobility sensor (InAs or InSb) produces a large signal voltage in response to the fringing magnetic field from the micromagnet. High storage density is achieved since a unit cell consists only of two transistors and one micromagnet Hall effect element. By comparison, a DRAM unit cell has one transistor and one capacitor, and a SRAM unit cell has six transistors

    Creating Silence: How Managerial Narcissism Decreases Employee Voice

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    Narcissism in organizations is becoming increasingly prevalent, as evidenced by the growing number of CEOs that seek acclaim and dominance, often at the expense of others (Chatterjee, 2017). Narcissism is defined as “individuals for whom enhancing the positivity of the self (specifically, to achieve status and esteem) is overwhelmingly important” (Campbell, 2004), and most often wields a detrimental influence on organizations. In the management literature, efficacy is defined as “a person’s estimate that a given behavior will lead to certain outcomes” (Bandura, 1977), and employees who hold a stronger sense of personal self-efficacy will display more active efforts to improve their organization (Bandura, 1977). Using a sample of 257 full-time employees, we explore the relationship between narcissism and efficacy in terms of promotive voice, which is focused on proactively pointing out opportunities for improvement (Liang, 2012). Additionally, we explore how this relationship is altered by voice setting, seeing as how the social setting in which voice occurs can affect managerial reactions to it (Isaakyan, 2018). Results confirm our hypothesis that employee voice behavior will be negatively correlated to managerial narcissism, and this relationship is mediated by efficacy, and moderated by voice setting

    Pivoting at the Midpoint: How Midpoint Course Adjustments Influence Student Engagement

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    In higher education, instructors must often pivot to new methods, approaches, and exercises to help students achieve learning objectives in a particular course. These course pivots can be challenging to navigate; however, they are often the difference between a successful course and an unsuccessful one. Research on the punctuated equilibrium model of group development provides important insights for instructors on managing and navigating course pivots. This article reviews research on midpoint transitions and discusses the benefits of implementing midpoint pivots. It then introduces an example of a midpoint course pivot: The Stop-Start-Continue exercise. It concludes with a discussion of the implications this exercise has for instructors and students alike

    A learning community approach to identifying interventions in health systems to reduce colorectal cancer screening disparities.

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    Although colorectal cancer (CRC) screening in the United States has been increasing, screening rates are not optimal, and there are persistent disparities in CRC screening and mortality, particularly among minority patients. As most CRC screening takes place in primary care, health systems are well-positioned to address this important population health problem. However, most health systems have not actively engaged in identifying and implementing effective evidence-based intervention strategies that can raise CRC screening rates and reduce disparities. Drawing on the Collective Impact Model and the Interactive Systems Framework for Dissemination and Implementation, our project team applied a learning community strategy to help two health systems in southeastern Pennsylvania identify evidence-based CRC screening interventions for primary care patients. Initially, this approach involved activating a coordinating team, steering committee (health system leadership and stakeholder organizations), and patient and stakeholder advisory committee to identify candidate CRC screening intervention strategies. The coordinating team guided the steering committee through a scoping review to identify seven randomized trials that identified interventions that addressed CRC screening disparities. Subsequently, the coordinating team and steering committee applied a screening intervention classification typology to select an intervention strategy that involved using an outreach strategy to provide minority patients with access to both stool blood test and colonoscopy screening. Finally, the coordinating team and steering committee engaged the health system patient and stakeholder advisory committee in planning for intervention implementation, thus taking up the challenge of reducing and important health disparity in patient populations served by the two health systems

    Initial Steps for Integrating Academic Electronic Health Records into Clinical Curricula of Physical and Occupational Therapy in the United States: A Survey-based Observational Study

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    Training programs must be designed to prepare physical and occupational therapy students for using Electronic Health Records (EHR) and interprofessional collaboration. This report aims to describe physical and occupational therapy students\u27 perceptions of integrating Academic EHR in their Problem-Based Learning (PBL) curricula in the College of Health Professions, Sacred Heart University, Fairfield, Connecticut, the United States. A paper-based case approach to PBL was adapted by creating patient cases in an Academic EHR (AEHR). Students were asked to complete chart reviews and review provider notes to enhance their learning. An online survey was conducted to determine their perceptions of using AEHR from May 2014-August 2015. Eighty-five students completed the survey, 88.1% felt that using AEHR was needed, 82.4% felt that the additional notes enhanced their understanding of the interdisciplinary team; however, 83.5% reported the AEHR system increased their time to extract meaningful information. Incorporating an AEHR into curricula is essential to ensure students are adequately prepared for future patient interactions

    Do Employees From Less-Healthy Communities Use More Care and Cost More? Seeking to Establish a Business Case for Investment in Community Health.

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    INTRODUCTION: Few studies have examined the impact of community health on employers. We explored whether employed adults and their adult dependents living in less-healthy communities in the greater Philadelphia region used more care and incurred higher costs to employers than employees from healthier communities. METHODS: We used a multi-employer database to identify adult employees and dependents with continuous employment and mapped them to 31 zip code regions. We calculated community health scores at the regional level, by using metrics similar to the Robert Wood Johnson Foundation (RWJF) County Health Rankings but with local data. We used descriptive analyses and multilevel linear modeling to explore relationships between community health and 3 outcome variables: emergency department (ED) use, hospital use, and paid claims. Business leaders reviewed findings and offered insights on preparedness to invest in community health improvement. RESULTS: Poorer community health was associated with high use of ED services, after controlling for age and sex. After including a summary measure of racial composition at the zip code region level, the relationship between community health and ED use became nonsignificant. No significant relationships between community health and hospitalizations or paid claims were identified. Business leaders expressed interest in further understanding health needs of communities where their employees live. CONCLUSION: The health of communities in which adult employees and dependents live was associated with ED use, but similar relationships were not seen for hospitalizations or paid claims. This finding suggests a need for more primary care access. Despite limited quantitative evidence, business leaders expressed interest in guidance on investing in community health improvement

    Radio Jet-Ambient Medium Interactions on Parsec Scales in the Blazar 1055+018

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    As part of our study of the magnetic fields of AGN we have recently observed a large sample of blazars with the Very Long Baseline Array. Here we report the discovery of a striking two-component jet in the source 1055+018, consisting of an inner spine with a transverse magnetic field, and a fragmentary but distinct boundary layer with a longitudinal magnetic field. The polarization distribution in the spine strongly supports shocked-jet models while that in the boundary layer suggests interaction with the surrounding medium. This behavior suggests a new way to understand the differing polarization properties of strong- and weak-lined blazars.Comment: LaTex; 10 pages; 6 figures; reference fix; to appear in ApJL, 518, 1999 June 2

    The IS Core: An Integration of the Core IS Courses

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    This paper describes an innovative, integrated implementation of the core Information Systems courses. While the published IS curriculum provides standards on course content, it gives little direction on the implementation of the courses. At Brigham Young University, we have reengineered the traditional topics of analysis, database, design, development, networking, etc. into an integrated, 24-hour course block called the “IS Core”. Instead of students moving from class to class, professors now rotate through integrated subjects in a common classroom environment. The IS Core has allowed the department to increase the rigor and integration between subjects so students see the entire systems process and has provided opportunities for cross-topic assignments and integrated exercises. Finally, it has resulted in unintended, additional benefits like increased student culture and student ownership of the major
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